Im gen 19 and i still havent loomed any leg armour.
I still havent loomed my Sallet either yet though... just so many things to loom, so much plate armour to pay for (by selling loom points) and then finding out that I wont be able to afford to craft plate in strategus and having to loom new stuff all over again lol...
My honest opinion is leave it till last. If there's definately nothing else you want to loom and you dont mind retiring 3 more times then go for it.